Automatic ball-bearing bobbin-holder.



W. J. SULLIVAN. AUTOMATIC BALL BEARING BOBBIN HOLDER. APPLICATION FILED SEPT. 7. 1915.

vv-ih-Iesss: 4mm. I (j I I W Li m MIL j WWW I WWW M Pmma June 26, 191?.

WILLIAM J. SULLIVAN, 015 NEW BROOKLAND, SOUTH CAROLINA AUTOMATIC BALL-BEARING- BOBBIN-HOL DER.

Specification of Letters Patent.

Application filed September '7, 1915. Serial No. sense.

To all whom 2'25 may concern:

Be it known that 1, WILLIAM J. SULLIVAN, a citizen of the United States, residing at New Brookland, in the county 57' Lexington, in the State of South Carolina, have invented a new and useful Automatic Ball- Bearing Bobbin-Holder, of which the fol lowing is a description and specification.

The object my invention is to provide an improved method for holding a threaded bobbin on a spinning frame so as to allow the thread on the bobbin to unwind slowly and automatically as it isbeing used by the spinning machine.

The object of my invention is attained by the mechanism illustrated in the accompanying drawing.

Figure 1. oi the drawing is a front elevation of the automatic ball bearing bobbin holder; Fig. 2. is an end view of the same; Fig. 8. is a longitudinal sectional view through the holder; Fig. d. is transverse sectional view showing the base F G on which the bottom of the bobbin fits; Fig. is a longitudinal sectional view of the base holder F G H showing the ball bearings I; Fig. 6. is a detail top \lQW of the base holder showing the ball bearings I and cup G and hey lb on which the bottom ofthe bobbin fits; Fig. 7. shows a spring E provided with a knob K attached adapted to be inserted in the upper end of the bobbin; Fig. 8. represents a plan view of the same.

Similar letters refer to similar parts throughout the several views.

The base A (Fig. 1;), its standards B B, and the horizontal cross bar 0 constitute the frame work of the bobbin holder. D represents the threaded bobbin in the holder. G is the circular cup ov r which the bottom of the bobbin fits; F is the key on the side of the cup over which key the cut out section 11 the bottom of the bobbin fits. H is the base of the bobbin holder in which are con tained ball bearings as shown by it in Fig. 6. The top of the base H surrounding and overlappingthe outer edge of the disk-like base of the cup G, thus providing means to hold the cup Gr properly positioned upon the ball bearings 1. {3n the bottom side of the horizontal bar 0 (Fig. l.) is fastened a frat signed to fit loosely in the top of a bobbin.

The knob K is inunediately above the cup G, so that when the bobbin is in the bob-- bin holder, it is in an upright position indicated by D in 1. l

The operation of my invention is as follows:

The bobbin l) filled with thread rests in the automatic ball bearing bobbin holder as above set forth. Eiee D Fig. 1. The end of the thread on bobbin attacliied to the spinning machine. The operation of the stunning u'iaehine pulls the thread, and it is necessary for it to unwind slowly and evenly from the bobbin l). The out out section in the bottom of the bobbin D fits over the key F as above set forth. See If G Fig. 1. The pulling oi the thread by the operation of the spinning machine thus causes the cup G to rotate on the ball bearings It beneath. The key F causes the bobbin l") to rotate with the cup G on which the bobbin By means of the ball bearings thread :is made even and steady and the danger of the thread breaking is eliminated. W hen the thread on the bobbin becomes ex hausted, the operator takes hold of the empty bobbin D with one hand, pushes it upward against the spring E attached to the cross bar C and pulls the bottom of the bobbin D outward and it is released from the base. Thus the empty bobbin is release from the holder. and the operator puts in its place a threaded bobbin. The loose end of the thread on the threaded bobbin is attached to the thread on the spinning machine, and the process of feeding the thread to the machine continues. Thus the use of the automatic ball bearing bobbin holder renders the bobbin stick useless. causes the spinning machine to be fed with thread un ii ormly, and prevents the frequent breaking of the thread.

ll claim:

A bobbin holder comprising a base plate having an annular ball receiving groove ball hearings in said groove, a bobbin sup porting nieinber rotatably mounted upon Patented Jnne 23 d. 1958?.

I, the unwinding of the said ball bearings and having a cylindrical said supporting member adapted to form a extension adapted to enter and position the driving engagement between the bobbin and base of a bobbin upon said member, said supporting member.

base plate having an annular extension sur- WILLIAM J. SULLIVAN. 5 rounding and overlapping the outer edge of Witnesses:

the bobbin supporting member to retain the F. J. GRUBE,

same in position, and a key mounted upon PIERRE F. LA BORDE. 

